I would say the landscaping business appears to have a lot more promise than you might realize.
As a utility worker, I might work 40 one week, and I might not be home for 3 days and work 70 hours the next week, but with no warning that I ain't coming home, so your trading 2 jobs that take you away from home, for a job that will take you away from home, just know that going into it.
I average 400 hours of OT at my job a year, and nearly all of it is unscheduled work, just dealing with outages after hours and weekends. Technically I take about 2 months off a year, so all my OT comes in 10 months, so I work 40 hours of OT every month that I work.
Utility work don't wait till Monday, but a landscape company in most every case can.